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9-sinf Informatika olimpiada

InfoMaster

May 31, 2022

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9-sinf Informatika olimpiada

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1. from math import *
a=144 s=sqrt(a)-pow(8,1)
print(s)
dastur natijasini toping

A) 7

B) 4

C) 6

D) 5

2 / 21

2. acos(x) funksiyaning vazifasini toping

A) x ning arkkosinusini hisoblaydi

B) x ning arksinusini hisoblaydi

C) x ning arktangensini hisoblaydi

D) x ning tangensini hisoblaydi

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3. asin(x) funksiyaning vazifasini toping

A) x ning arksinusini hisoblaydi

B) x ning arktangensini hisoblaydi

C) x ning arkkosinusini hisoblaydi

D) x ning tangensini hisoblaydi

4 / 21

4. from math import *
s=sqrt(36/49)-pow(5/7,2)
print(s) dastur natijasini toping

A) 26/49

B) 34/49

C) 24/49

D) 17/49

5 / 21

5. from math import *
a=16 s=sqrt(a)*pow(2,2)
print(s) dastur natijasini toping

A) 16

B) 15

C) 13

D) 14

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6. Pythonda takrorlanishlar soni nomaʼlum bo‘lganda qo'llaniladigan operator qaysi?

A) for

B) while

C) while..do

D) repeat

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7. MS Excel. A1=–3, B1=7, B2=2 bo‘lsin. Quyidagi formula natijasi –15 bo‘lishi uchun A2 katakka kiritish zarur bo‘lgan qiymatni aniqlang:

=ЕСЛИ(ИЛИ(A1+B2>=A2*B1;A1*B1>0);A1*B2–B1–A2;A1*B1+B2+A2)

A) 1

B) 6

C) 4

D) 2

8 / 21

8. MS Excelda I8 yacheychadagi “=F$4-$J11” formulani L4 katakdagi nusxasini ko‘rsating?

A) =I$4-$J7

B) =$I4-$J11

C) =I$8-$J15

D) =I$1-$J7

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9. C˄˥A˅B mantiqiy ifodaga teng kuchli ifodani toping.

A) ˥(C˅A)˅˥B

B) ˥(C˅A)˅B

C) ˥(˥C˅A)˅B

D) ˥C˅A˅B

10 / 21

10. A=“ BIOS – ma’lumotlarni kiritish va chiqarish dasturidir”;

B=“Shareware – sinovdan o‘tkazish muddatiga ega bo‘lgan dasturlardir”;

C=“Doppix dasturi operatsion sistemadir”.

Shu mulohazalar asosida quyidagi mantiqiy ifodaning natijasini toping:

(A and C and B) xor (not(B) and not(C) and A)

A) Ba’zi mulohazalarda xatolik bor.

B) Yolg‘on

C) Ifodada xatolik bor

D) Rost

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11. F(n) funksiyasi qiymatini hisoblash algoritmi quyidagicha berilgan:
n ≤2 da F(n) = 3; n> 2 da F(n) = 5 ∙ F(n−1) –4 ∙ F(n−2), buyerda n – natural son. F(15) ning qiymatini aniqlang.

A) 5

B) 4

C) 3

D) 2

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12. MS Excel. A1=57, Bl=114, Cl=4, A2=228, B2=285, C2=Avtomexanik berilgan bo‘lsa, =ПСТР(С2;5+СЧЁТЕСЛИ(А1:B2; ”>56”);C1) formula qiymatini toping.

A) Avtom

B) mex

C) exanik

D) anik

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13. “CHEVROLET” so‘zi harflarini kodlash uchun eng kam bit talab etiladigan ikkilikda tekis kodlash usulidan foydalanilgan. Shu bilan birga, ikkilikdagi kodlar o‘sib borish tartibi ingliz alifbosi harflarining o‘sish tartibiga moslashtirilgan. R harfi kodini toping.

A) 100

B) 110

C) 011

D) 101

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14. 516 va 457 sonlar yig‘indisidan 366 sonini ayirmasi hisoblanganda, 607soni hosil bo‘ldi. Yig‘indi qaysi sanoq sistemasida bajarilgan?

A) 9

B) 10

C) 12

D) 8

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15. MS Excel. Quyidagi formula natijasini aniqlang: =КОРЕНЬ(НОК(60;45;80)+ДЛСТР(ПРАВСИМВ("texnologiyalar";9)))

A) 9

B) 16

C) 18

D) 27

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16. Ikkilik yozuvida 6 ta nol qatnashgan eng katta to‘rt xonali 16 lik sonni ko‘rsating?

A) FFFF

B) 81FF

C) FF00

D) FFC0

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17. A1=-7, B1=8, B2=4 bo‘lsin. Quyidagi formula natijasi -23 ga teng bo‘lishi uchun A2 katakka kiritilishi kerak bo‘lgan qiymatni aniqlang.

=ЕСЛИ(ИЛИ(A1+B2<=A2*B1; A1*B1>0); A1*B2+B1-A2; A1*B1+B2+A2)

A) 5

B) 3

C) 1

D) 0

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18. Quyidagi sonlar ayirmasining o‘nlik sanoq sistemasidagi ikkilanganini hisoblang. Natijani to`rtlik sanoq sistemasida tasvirlang?

$F7D_{16} va 6204_{8}$

A) 23321

B) 761

C) 130001

D) 113302

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19. 7 ta pozitsiyada 0 va 1 orqali kodlash mumkin bo‘lgan eng katta natural son bilan eng kichik natural sonlarning yig‘indisini toping.

A) 256

B) 128

C) 64

D) 512

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20. O‘qituvchi og‘zaki imtihonda o‘quvchiga savol beryabti. O‘quvchi savollarga 4 xil holatda “To‘g‘ri”, “O‘rtacha”, “Qisman”, “Noto‘g‘ri” javoblarni beryabti. Javoblar yordamida 956 ta turli holatlarni hosil qilish imkonini berishda o‘quvchiga birvaqtning o‘zida nechta savol berilishi kerak?

A) 7

B) 4

C) 6

D) 5

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21. O’nlik asosga ega sanoq tizimida 274 soni 1AA shaklida yoziladi. Ushbu asosni 4 lik sanoq sistemasida ko‘rsating?

A) 12

B) 110

C) 30

D) 100